Any one interested in the oiling mods I did?
So my oil plan is still evolving but I'm leaning towards a loop-feed that is pretty similar to the Sanborn & Son layout, with some differences. I'm a believer in looping the right galley...but I'm gonna try to stay away from external lines. I added a couple carefully placed holes front and rear. This uses the generous feed passage that the #5 main currently has pretty much to itself...I felt that was better than 'tapping into the right galley to feed the right galley'. The hard line shown is a piece of scrap 3/8" tubing I had lying around; I'll make the real lines out of something better. I tipped these fittings up about 12 degrees to help the fit and also to reduce the sharp 90 degree bend of a right angle. The minimum diameter from the passage to passage will be 5/16"....that's pretty much as good as it's gonna get with a 1/4NPT port. The combined 'bend' in my hard line is 77 degrees, so I feel that's better then even a single 90 degree.
If I decide later I want a full -10AN feeding the front, I've set it up so I can change it over without too much misery.
I'm going to add a second line to feed the left galley, it will be smaller since it is only pressuring up the lifter bores/rockers.